The article indicates a new process of preparing the synthesis gas by partial oxidation catulytic reaction in a two-stage fix-bedwhere specinl cutalysts are sused. The combustion catalytic reaction of methane on the special La-Mn perovskite catalyst has been investigated,and the influence of operating conditions, such as temperature, pressure and space velocity etc.
A series of novel La1-x SrxN1-yCoyO3( x = 0, 0. 1, 0. 2, 0. 5; y = 0 - 1. 0)perovskite oxides were prepared by sol-gel method and characterized by XRD and XPS. The activity of bifunctional oxygen electrodes made by the perovskite-type catalyst dispersed on active carbon were investigated using electrochemical impedance spectroscopy(EIS).
A series of novel La_(1-x)Sr_xNi_(1-y)Fe_yO_3 (x=0, 0.1, 0.2, 0.5; y=0～1.0) perovskite oxides were pre- pared by sol-gel method and characterized by XRD, SEM and BET measurement.
The porous ceramics was used as the support for perovskite catalysts based on La_ 0.8 Sr_ 0.2 CoO_ 3-δ , and the catalyst showed excellent activity and stability in the catalytic combustion of NO and CO.
Aimed at catalytic combustion of soot from diesel engines,noble metal catalysts,transitional metal catalysts,perovskite catalysts and non-thermal plasma technology assisted catalysts were reviewed including the latest research progress. And the mechanism of those related catalysts and catalytic technology were introduced,as well as their practical problems existed and application prospects were discussed.
They were applied in novel air-metal hydride batteries innovatively. The results show that the discharge performance of the battery used LaNi0.8Co0.2O3 is better than that used LaNi0.8Fe0.2O3,however the discharge capacity fading is opposite because the Co ion is not more stable than Fe ion in perovskite crystal lattice.
Experimental results show that the sintering temperature is a key parameter affecting the formation of LaMnO_3 perovskite-type catalysts, with the catalyst sintered at 973 K more active than those sintered at 773 K or 1173 K.
New methods of partial oxidization of natural gas to synthesis gas using lattice oxygen from perovskite are introduced in this paper. The partial oxidation catalytic reactions of methane on AFeO 3(A=La,Nd,Sm,Eu) are investigated.
The lanthanum nickelate, LaNiO3-d, perovskite catalyst was synthesized fby the Pechini process, characterized by X-ray diffraction patterns, iodometric titrations, BET-surface area and scanning electron microscopy.
The lattice dynamical properties of BaPb1-xBixO3 are described within the polarizability model for perovskite oxides, but extended to take into account the valence instability of Bi.
A novel, economical, and energy-efficient process to produce nanostructured particles of several perovskite oxides, such as ferroelectrics BaTiO3, SrTiO3 and LiNbO3, is described.
In the oxidation of CH4, the IC-12-73 catalyst was more active than the perovskite catalysts, although particular perovskite catalysts can exhibit higher activity in the region of low temperatures.
钙钛矿催化剂
perovskite catalyst
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